is that excessive? only you can answer but if you want some facts i can work out uk units for you
lets assume that your gin and cognac are 40%, your wine and champagne is 12% and your beer is 4% that should get us a ball park figure
a unit is (quantity in milliliters * percentage by volume)/1000
so gin =
((3*350)*40)/1000 = 42 units
champagne =
((2*750)*12)/1000 = 18 units
wine =
((25*750)*12)/1000 = 225 units
cognac =
(700*40)/1000 = 28 units
12 beer =
((12*250)/1000 = 12 units
add that up you get 325 units over the three weeks, or 108 units a week, or assuming your sharing that equally, 54 units a week each, lets go to 7 units per day each, now lets reverse engineer that, 7*1000, is 7k, / 12 = 583, / 750, equals roughly 77% of a bottle of wine a day each,
not going to offer any advise but thought you might like to see the numbers broken down as it often helps with working out what you are actually drinking
now to put that into perspective the UK's current guidelines are that there is no safe level of consumption but that both men and women should not regularly drink more than 14 units a week, that said i reckon i am on about the same par as you
and in response to David's post above, having to pay for medical care is neither here nor there, if you want to exceed the safe limits thats fine, that is why they are guidlines not laws ;)